Supporting frame of cradle



FIG. 1 is the perspective view of a “supporting frame of cradle” showing my new design;

FIG. 2 is the front view thereof;

FIG. 3 is the rear view thereof;

FIG. 4 is the left side view thereof;

FIG. 5 is the right side view thereof;

FIG. 6 is the top view thereof;

FIG. 7 is the bottom view thereof; and,

FIG. 8 is the perspective view showing the practical usage thereof.

The broken line showing of the cradle in FIG. 8 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a “supporting frame of cradle”, as shown and described. 